All categories

3 years ago

MATH HELP PLZZZZZ!!! 10pts

Mathematics

2 answers:

kykrilka [37]3 years ago

8 0

First i got the area which is : A= a+b divided by 2 x height
=2.5+3.5 divided by 2 x 2= 6
Area = 6

To get the perimeter you just add all the sides together so: 3.5+2.5+2.5+2.5= 11

tester [92]3 years ago

4 0

Answer:

First i got the area which is : A= a+b divided by 2 x height

=2.5+3.5 divided by 2 x 2= 6

Area = 6

To get the perimeter you just add all the sides together so: 3.5+2.5+2.5+2.5= 11

Step-by-step explanation:

You might be interested in

How many triangles can fit on a square?

ASHA 777 [7]

Infinitely many triangles can fit in a square.
But only 2equal triangles can fit

5 0

3 years ago

Read 2 more answers

Gabriella spent half of her weekly allowance buying pizza. To earn more money her parents let her clean the windows in the house

max2010maxim [7]

Answer:

22

Explanation:

The problem said that Gabriella spent half her weekly allowance buying pizza.
So we know that whatever her weekly allowance is it has to be cut in half.
If she ended up with $14 then we can double that number and take away 6.

I’m not 100% sure that this is the right answer but I hope it helped!

6 0

3 years ago

True or False? In an isosceles trapezoid the diagonals are congruent.

Ainat [17]

It is true, they are congruent by doing a proof. You have to divide the trapezoid into 2 equal triangles. Then you can prove it. They are congruent since corresponding parts of congruent triangles are congruent.

3 0

3 years ago

the population of Watesville decreases at a 1.6% per year.If the population was 62,500 in 2014 what will it be in 2020

vichka [17]

The population in 2020 will be 57657.5 approximately

<u>Explanation:</u>

Given:

Population in 2014, P = 62,500

Rate of decrease, r = 1.6%

Population in 2020, Q = ?

Number of years between 2014 to 2020 = 5 years

Population in 2020 = $P(1 - \frac{r}{100} )^t$

Substituting the value we get:

$Q = 62500(1- \frac{1.6}{100})^5\\ \\Q = 62500 ( 0.92252) \\\\Q = 57657.46$

Therefore, the population in 2020 will be 57657.5 approximately

7 0

3 years ago

Una torre de 28.2 m de altura esta situada a la orilla de un rio, desde lo alto del edificio el ángulo de depresión a la orilla

Svet_ta [14]

Answer:

El ancho del río es 59.9 metros.

Step-by-step explanation:

El ancho del río lo podemos calcular con la siguiente relación trigonométrica asumiendo que la torre forma un triángulo rectángulo con el río:

$tan(\theta) = \frac{CO}{CA}$

En donde:

CA: es el cateto adyacente = Altura de la torre = 28.2 m

CO: es el cateto opuesto = ancho del río =?

θ: es el ángulo adyacente a CA

Dado que el ángulo de depresión (25.2°) está ubicado fuera de la parte superior de la hipotenusa del triángulo que forma la torre con la orilla opuesta del río, debemos calcular el ángulo interno (θ) como sigue:

$\theta = (90 - 25.2)^{\circ} = 64.8 ^{\circ}$

Ahora, el ancho del río es:

$CO = tan(\alpha)*CA = tan(64.8)*28.2 = 59.9 m$

Por lo tanto, el ancho del río es 59.9 metros.

Espero que te sea de utilidad!

4 0

2 years ago